Phonograph sound-box.



Patente@ Jan. l, 19%).

Bti

srATEs PATENT oEEIoE.

, 'A rosette Horner, or NEW Yom, N. Y.

PHONUGRAPH SOUND-BOX.

Specieation of Letters Patent.

"Patentealang 21, 1919.

imputation sied July 1o, 191e. serial No. 108,346.

Mexico, and a resiprovide a sound box of very simple construction requiring little ltime and practically no skill in assembling; which insures the very desirable inward pressure on the diaphragm vinto normal contact with the strongest side of the bon; which permits ready adjustment of this pressure; which provides a suspension for the stylus carrier at four points on the same axis; which provides a direct bearing of the stylus carrier on y.non at two points instead of on lines or rfaeesg which in one embodiment has lateral adjustment carrier holding means; and which noiseless insulation for the said o prevent metallic sounds at e p oL support thereof in the reprowtio of e record.

" ion is fully described in the foleation, of which the accomrs forni a part, in which like tolilre parts in each of the h..ieh:- side elevation of a sound box s.; accordance with my invenedge view thereof on the axis fragmentary, enlarged, section e line 3 3 of Fig. 1; l e e, View similar to Fig. 2 but with zarte removed to show a detail of the construction;

Fig. 5 is a detached'view of the stylus carrier and diaphragm arm;

Fig: 6 isa detached view of the stylus carriersholding ineens, with insulating means at the ends thereof, one of which is detaclded i that t osnrrr Horner, a citiin the county of New ltfiy invention relates to phonograplrsound boxes, and 'some of the objects thereof are t0l and 14, the latter of which and secured within 'the last named bearingson knife edges heldI einst displacement; which provides means 1 of the outer ends of' Fi' 7 is an enlar ed fra entary section takeng on the line lfeg-i7' of'limg l; y

ig. 8 is a similar view taken on the line 8-8 of Fig. l; j

ig. 9 is a fragmentary view similar to Fig. 1 but-showing a modification thereover; and

.Fig 10 -is a 1o- 100f-Fig, 9. y

Referring to the drawings, 11 represents the casing of asound boX containing a diaphragm 12 held between two resilient pads is against the integral and stronger side of the box l1l and section taken on the line which side is desn'ed to serve as the main support for the diaphragm.

Secured to the diaphragm 12, as by a screw 15, is an arm 16 `of yoke shape inserted into a stylus carrier 17 for the stylus lSandprovided with a hole 19 there-` through, for the passage of a carrier holding rod 20 of considerable length, relatively, and having' its ends insulated or padded by means of rubber or other tube sections 2l.

These ends are held beneath screws 22 in turn held in bifurcated brackets 23 in permanent connection with the casing 11 equidistant'from the stylus carrier 17, andthe rod 2O tends yto force the 'said carrier against the edge of the sound box` by reason of its resiliency, being sprung into its bowed shape, and the edge of the sound box is provided with a transverse V-shaped channel 24 in ysaid knife edge transversely of the casing 11 in the vibrator-y movement of the carrier due to the stylus moving in the groove of a record, or because of the pressure exerted on said carrier by the rod 20 when the ends thereof are adju ted to bow said -rod in plan view facing the edge of the casing 11. to forse the dlaphragm 12 against the pad 14.

Inthe form shown in Figs. 1 to 8, inclu- The form shown in Figs. 9 and 10 is essentially the same as that described with the difference that the inner end of the carrier 17 is of semi-spherical form and no groove 26 is provided in the casing 11, the holder 20 forcing said carrier against the plane surfaces, of the channel 24 but only at two points on the inner end of said` carrier because o the rounded formation of the latter.

To adjust the tension of the rod 20 on the carrier 17 in the first form, the insulated ends of said rod are moved toward or from the upper or outer face of the sound box by means of the screws 22 in the brackets Q3, or manually by depressing said ends out of screw engagement, whereas in the form last described the carrier 17 may be forced, at its inner end, toward or from the outer face of the sound box to obtain thev desired diaphragm tension or pressure, the i uninterrupted surfaces of the channel :24 permitting such carrier adjustment. IVhile the drawings disclose the possibility of adjustment of the ends of the rod 20 vin this last described form, it will be obviousl that this is not imperative in view of the adjustability of the carrier transversely of the sound box.

In both forms, ythe bearing points of the carrier 17 and of the ends of the rod 20 are on substantially the axis of rotation of said carrier, thereby permitting rocking movement of lthe latter by means of the stylus moving over a record, thus correspondingly affecting the diaphragm.

The assembling of the sound box is very simple and expeditious, the pads 13 and 14 and the diaphragm being placed within the casing 11, the detachable side of the latter assembled, he arm w16 secured to the diaphragm with the inner end of the carrier 17 in the channel Q4, and the ends of the rod 20 passed beneath the screws 22, either previous to the connection of the arm '16 with the diaphragm or thereafter, in the latter event the said screws Q'Zbeing removed from their supportingbrackets 23 to permit the passage of the ends of the rod 20, the latter being soldered or otherwise permanently secured to the carrier 17.

In either form of construction the rod 2O tends to force the diaphragm inwardly, in the one form by the adjustment of the insulai'ed ends, and in the other form by the adjustmenty of the carrier 17 in the channel 24 or, if desired, by said rod ends also, and the resilient pads on the rod ends eliminate the possibility of metallic sounds at the bearing points thereof during the rendition of a selection on a record. L.

My sound box is very simple, very efficient, quickly assembled and adjusted, and is practically foolproof because of the few parts and the improbahility of these parts being broken or deranged, and the relatively great length of the rod 2O exerts a considemble influence in the result because of the relatively great leverage thus provided and, thereby, of the considerable range of adjustment of the deree of pressure on the diaphragm.

lVhile I have shown two preferred embodiments of the invention, I do not desire to limit myself thereto, but` may make changes thereover provided that such changes do not depart from the spirit of the invention and come within the scope of the appended claims.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. A phonograph sound box, comprising a casing, a diaphragm therein, a stylus-car rier in operative connection with said diaphragm, and means for holding said carrier against said casing, said carrier and said holding means having each two bearing points upon the casing in the axis of rotation of the carrier, whereby the carrier may be positioned relatively to the plane of the diaphragm independently of the holding means.

2. A phonograph sound box, comprising a casing, a diaphragm therein, a stylus-carrier in operative connection with said diaand means for holding said carrier against said casing and for depressing said diaphragm, said carrier and said holding means having each two bearing points upon the casing in the axis of the carrier, the bearing point of vthe carrier being adjustable with respect to the plane of the diaphragm to enable said diaphragm to be readily given the proper amount of depression under the action of said holding means.

3. A phonograph sound box, comprising a casing, a diaphragm therein, a stylus-carrier in operative connection with said diaphragm, a rod for holding said 'carrier against said casing and supports for the ends of said rod-forming bearings for said rod, said supports being positively connected to said casing, and said carrier and said rod having each two bearing points on the axis of rotation of the former, said bearing points with respect to the plane of the diaphragm.

4. A phonograph sound box, comprising a casing, a diaphragm therein, a stylus carrier in operative connection with said diaphragm,

being independently adjustable` a rod in operative connectionjvith said carsaid diaphragm.

ieXed condition for holding said carrier against said casing and for iiexing saidrod in another direction to rochv said carrier to depress saidv diaphragm. Y

6. A phonograph sound box, comprising a casing, a diaphragm therein, 'a stylus carrier in operative connection with said 'diaphragm, a rod in operative connection with said Carlier, means for holding the rod in iiexed condition to hold said carrier against said casing, and resilient pads interposed between the ends of said rod and said rod holding means.

7. A phonograph sound-box, comprising a casing having a V-shaped transverse channel, a diaphragm in said casing, a styluscarrier in operative connection with said diaphragm and -having bearings in said V-'shaped channel, resilient means for holding Isaid 'carrier against the Walis of said channel, the carrier being adjustable to ch'a'nge the transverse relationship ot' said darrierxand said resilient means to enable the latter to depress said diaphragm.

SLA phonograph sound-box, comprising a casing having a V-shaped transverse channel, a diaphragm in said casing, a styluscarrier in operative4 connection with said diaphragm, said carrier having a rounded inner end bearing against the sides oi' saidab channel at'two points, and resilient means for holding said carrier against said casing, said carrier being adjustable along said channel to enable' said resilient means to vary the pressure upon said diaphragm. i

9. A phonograph sound box, comprising a casing having a V-shaped transverse channel in itsedge intercepted by a groove parallel to the face of said casing, a diaphragm in said casing, a stylus carrier in operative connection with said diaphragm and provided with a rounded knife edge resting in said groove and bearing against said casing at two points, means for holding said carrier against said casing, and means for changing the transverse relationship of said carrier and said holding means to depress 10. A phonograph sound box comprising a casing, a diaphragm in said casing, a stylus carrier having an operative connection with said diaphragm and a bearing upon said casing, a rod connected with said `carrier and means arranged to hold said rod fiexed in the direction to maintain said carrier upon its bearing and also in the direction to rock said carrier to depress said diaphragm, said rod being located approximately in the plane of the diaphragm.

1,1. A phonograph sound box comprising a casing, a diaphragm in said casing, a sty-l lus carrier having an operative connection with said diaphragm and having a bearing upon said casing, and means for maintaining said carrier upon said casing comprisholding means being se? .a

ing a single member tensioned in `one 'direction with 'respect .to said casing to ho1d,'said carrier upon its bearing, and-in another 'dis rection to rook said carrier upon' its bearing to depress the diaphragm, -said member. 7o having bearings substantially in the aXis of oscillation of said carrier when moving perpendicularly to said diaphragm. f

12, A phonograph sound box. comprising a casing, adiaphragm in said casing, a stylus carrier having Ian operative connection with said diaphragm and a bearing upon said casing, a rod for holding said lcarrier upon its bearingl connected to said carrier and having bearings upon said casing upon 8o which it may oscillate with said carrier, and` vibration absorbing means between said rod and its bearings. l p

13. A phonograph sound box comprising a casing, a diaphragm in lsaid casing, a stylus carrier having an operative 4connection with saiddiaphra and a bearingvupon said casing, a rod Ei? maintaining said carrier upon said bearing connected to said carrier and tensioned tially normal to eachother, means for maintaining said rod in tensioned condition-comprising connections to the casing, and vihration absorbingmeans between said rod and said connections. y 14. A phonograph sound box comprising a casing, a diaphragm in said casing, a stylus carrier having an operative connection with said .diaphragm and a bearing upon said casing, a rodconnected. to said carrier and tensioned to press upon said carrier-in directions to maintainait upon4 its bearing andv 'to rock it about its bearing, and means for maintaining said rod *inytensioned cconsvh l d1t1on,. comprising bearings for said rod 105 upon which it 'may oscillate with said carrier, said bearings being located substantially in the' axis of normal oscillation of said carrier upon its bearing.

15. A phonograph sound boxl comprising 11o a circular casing, a diaphragm in said casing, a stylus carrier havingan operative connection with said diaphragm and-a bearing upon said casing, a rod connected with sald carrier and bent substantially in the arcof curvature of said casing to tension said rod to hold said carrier upon its bearing, and means for holding said rod intensioned condition comprising bearings upon which said rod may oscillate with said carrier, said rod and carrier bearings lying substantially in a chord of said arc.

16. Av phonograph sound-box comprising a casing, a diaphragm therein, a stylus-carrier in operative connection with said diaphragm,mand means for holding said carrier against said casing, said carrier and said holding means having each two bearing points upon'the casing, themounting of said in directions s'ubstan- 90 such as lto permit oscillation of the holding means with said car- Iier.

17 A phonograph sound box comprising a easing. a diaphragm therein, a stylus-earrier in operative connection with said diaphragm, and means for holding said carrier against said easing, said carrier and said holding means having each two bearing points upon the casing in the axis of the rotation of the carrier, the mounting of the holding means being such as to permit oseillation of the holding means in the axis of rotation of the carrier.

18. A phonograph sound-box comprising a casing having a transverse channel, a diaphragm in said casing, a stylus-carrier in operative engagement With said diaphragm, and means for holding said carrier against the Walls of said channel.

19. A phonograph sound-box comprising a casing and a diaphragm in said easing, a stylus-carrier having an operatfe connection with said diaphragm and bearing upon said easing, and means for holding said earrier upon its bearing, said holding means held by said easing so that it may oscillate with said carrier.

' JOSEPH HOFFAY. 

